/* USER CODE BEGIN Header */
/**
 ******************************************************************************
 * @file    usart.c
 * @brief   This file provides code for the configuration
 *          of the USART instances.
 ******************************************************************************
 * @attention
 *
 * Copyright (c) 2023 STMicroelectronics.
 * All rights reserved.
 *
 * This software is licensed under terms that can be found in the LICENSE file
 * in the root directory of this software component.
 * If no LICENSE file comes with this software, it is provided AS-IS.
 *
 ******************************************************************************
 */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "usart.h"

/* USER CODE BEGIN 0 */
STRUCT_USART_DMA usart1_dma;

//设备为RS485
#define USART1_RS485 1
#define USART_RS485_RESET   HAL_GPIO_WritePin(GPIOA, GPIO_PIN_8, GPIO_PIN_RESET);
#define USART_RS485_SET 	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_8, GPIO_PIN_SET);
/* USER CODE END 0 */

UART_HandleTypeDef huart1;
DMA_HandleTypeDef hdma_usart1_rx;
DMA_HandleTypeDef hdma_usart1_tx;

/* USART1 init function */

void MX_USART1_UART_Init(void)
{

  /* USER CODE BEGIN USART1_Init 0 */
#ifdef USART1_RS485
	USART_RS485_RESET;
#endif
  /* USER CODE END USART1_Init 0 */

  /* USER CODE BEGIN USART1_Init 1 */

  /* USER CODE END USART1_Init 1 */
  huart1.Instance = USART1;
  huart1.Init.BaudRate = 115200;
  huart1.Init.WordLength = UART_WORDLENGTH_8B;
  huart1.Init.StopBits = UART_STOPBITS_1;
  huart1.Init.Parity = UART_PARITY_NONE;
  huart1.Init.Mode = UART_MODE_TX_RX;
  huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  huart1.Init.OverSampling = UART_OVERSAMPLING_16;
  huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
  huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
  if (HAL_UART_Init(&huart1) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN USART1_Init 2 */
	__HAL_UART_ENABLE_IT(&huart1, UART_IT_IDLE);
	HAL_UART_Receive_DMA(&huart1, usart1_dma.dma_buf, BUFFERSIZE);
  /* USER CODE END USART1_Init 2 */

}

void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
{

  GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(uartHandle->Instance==USART1)
  {
  /* USER CODE BEGIN USART1_MspInit 0 */

  /* USER CODE END USART1_MspInit 0 */
    /* USART1 clock enable */
    __HAL_RCC_USART1_CLK_ENABLE();

    __HAL_RCC_GPIOA_CLK_ENABLE();
    /**USART1 GPIO Configuration
    PA9     ------> USART1_TX
    PA10     ------> USART1_RX
    */
    GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF1_USART1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* USART1 DMA Init */
    /* USART1_RX Init */
    hdma_usart1_rx.Instance = DMA1_Channel3;
    hdma_usart1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
    hdma_usart1_rx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_usart1_rx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_usart1_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_usart1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_usart1_rx.Init.Mode = DMA_CIRCULAR;
    hdma_usart1_rx.Init.Priority = DMA_PRIORITY_VERY_HIGH;
    if (HAL_DMA_Init(&hdma_usart1_rx) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(uartHandle,hdmarx,hdma_usart1_rx);

    /* USART1_TX Init */
    hdma_usart1_tx.Instance = DMA1_Channel2;
    hdma_usart1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
    hdma_usart1_tx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_usart1_tx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_usart1_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_usart1_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_usart1_tx.Init.Mode = DMA_NORMAL;
    hdma_usart1_tx.Init.Priority = DMA_PRIORITY_HIGH;
    if (HAL_DMA_Init(&hdma_usart1_tx) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(uartHandle,hdmatx,hdma_usart1_tx);

    /* USART1 interrupt Init */
    HAL_NVIC_SetPriority(USART1_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(USART1_IRQn);
  /* USER CODE BEGIN USART1_MspInit 1 */

  /* USER CODE END USART1_MspInit 1 */
  }
}

void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
{

  if(uartHandle->Instance==USART1)
  {
  /* USER CODE BEGIN USART1_MspDeInit 0 */

  /* USER CODE END USART1_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_USART1_CLK_DISABLE();

    /**USART1 GPIO Configuration
    PA9     ------> USART1_TX
    PA10     ------> USART1_RX
    */
    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);

    /* USART1 DMA DeInit */
    HAL_DMA_DeInit(uartHandle->hdmarx);
    HAL_DMA_DeInit(uartHandle->hdmatx);

    /* USART1 interrupt Deinit */
    HAL_NVIC_DisableIRQ(USART1_IRQn);
  /* USER CODE BEGIN USART1_MspDeInit 1 */

  /* USER CODE END USART1_MspDeInit 1 */
  }
}

/* USER CODE BEGIN 1 */

//阻塞
void USART1_Send(uint8_t *buffer, uint16_t length) {
	while (huart1.gState != HAL_UART_STATE_READY)
		;
	HAL_UART_Transmit(&huart1, buffer, length, 0xffff);
	//HAL_Delay(500);
	//while(USART_GetFlagStatus( USARTx, USART_FLAG_TC )	==	RESET);
}

//中断
void USART1_IT_Send(uint8_t *buffer, uint16_t length) {
	while (huart1.gState != HAL_UART_STATE_READY)
		;
	HAL_UART_Transmit_IT(&huart1, buffer, length);
	//HAL_Delay(500);
}
//DMA
void USART1_DMA_Send(uint8_t *buffer, uint16_t length) {
	while (HAL_DMA_GetState(&hdma_usart1_tx) != HAL_DMA_STATE_READY)
		;
	//__HAL_DMA_DISABLE(&hdma_usart1_tx);//关闭DMA
	HAL_UART_Transmit_DMA(&huart1, buffer, length);
	//while (HAL_DMA_GetState(&hdma_usart1_tx) != HAL_DMA_STATE_RESET)
	//		;
	HAL_Delay(30);
}
//////////////////////////////////////////////////////////////////////////////////
// 重写printf函数
void Debug_printf(const char *format, ...) {
	uint32_t length = 0;
	va_list args;
	va_start(args, format);
	memset(usart1_dma.send_buf,0,BUFFERSIZE);
	length = vsnprintf((char*) usart1_dma.send_buf, sizeof(usart1_dma.send_buf),
			(char*) format, args);
#ifdef USART1_RS485
	USART_RS485_RESET;
#endif
	USART1_DMA_Send(usart1_dma.send_buf, length);
#ifdef USART1_RS485
	USART_RS485_SET;
#endif
}

void Debug_printfBuff(uint8_t *buffer, uint16_t length) {
#ifdef USART1_RS485
	USART_RS485_RESET;
#endif
	USART1_DMA_Send(buffer, length);
#ifdef USART1_RS485
	USART_RS485_SET;
#endif
}

void Debug_printfRS485(const char *format, ...) {
	uint32_t length = 0;
	va_list args;
	//uartmd_send();
	va_start(args, format);
#ifdef USART1_RS485
	USART_RS485_RESET;
#endif
	memset(usart1_dma.send_buf,0,BUFFERSIZE);
	length = vsnprintf((char*) usart1_dma.send_buf, sizeof(usart1_dma.send_buf),
			(char*) format, args);
	USART1_DMA_Send(usart1_dma.send_buf, length);
#ifdef USART1_RS485
	USART_RS485_SET;
#endif
	//uartmd_rece();
}

void Debug_printf4(const char *format, ...) {
	uint32_t length = 0;
	va_list args;
	va_start(args, format);
#ifdef USART1_RS485
	USART_RS485_RESET;
#endif
	memset(usart1_dma.send_buf,0,BUFFERSIZE);
	length = vsnprintf((char*) usart1_dma.send_buf, sizeof(usart1_dma.send_buf),
			(char*) format, args);
	USART1_DMA_Send(usart1_dma.send_buf, length);
#ifdef USART1_RS485
	USART_RS485_SET;
#endif
}

void Debug_printf4Buff(uint8_t *buffer, uint16_t length) {
#ifdef USART1_RS485
	USART_RS485_SET;
#endif
	USART1_DMA_Send(buffer, length);
#ifdef USART1_RS485
	USART_RS485_SET;
#endif
}


//printf re directional
#ifdef __GNUC__
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif

PUTCHAR_PROTOTYPE {
	HAL_UART_Transmit(&huart1, (uint8_t*) &ch, 1, HAL_MAX_DELAY);
	return ch;
}

/* USER CODE END 1 */
